AS Name: CERULEAN

Organization: ORG-CSL8-RIPE

Registry: RIPE

Imports from (2)

Exports to (3)

aut-num:        AS51572
as-name:        CERULEAN
org:            ORG-CSL8-RIPE
import:         from AS25577 accept ANY
import:         from AS174 accept ANY
export:         to AS25577 announce AS51572
export:         to AS174 announce AS51572
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
notify:         ripe@cerulean.co.uk
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CERULEAN-MNTR
created:        2010-09-30T10:13:37Z
last-modified:  2025-10-24T17:33:19Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

Direct Membership

Macros that directly list AS51572 as a member:

AS-C4L(120 members)

Expanded Membership

All macros containing AS51572 (directly or via nested macros): 34

Show 34 macros

AS-C4L(1,239 ASNs)
AS-HOTLINKS-LINX(1,371 ASNs)
AS-LTTUKPEERS(24,991 ASNs)
AS-LTT(24,993 ASNs)
AS-INTEROUTE(43,471 ASNs)
AS2914:AS-EUROPE-V6(73,647 ASNs)
AS-VERIO-EUROPE(74,186 ASNs)
AS2914:AS-EUROPE(74,186 ASNs)
AS-OPENPEERINGPEERS(76,528 ASNs)
AS-OPENPEERINGPEERS-EU(76,536 ASNs)
AS-SET-LONAP-CONNECTED(77,146 ASNs)
AS215153:AS-EXCHANGES(77,148 ASNs)
AS2914:AS-GLOBAL-V6(81,831 ASNs)
AS-VERIO(82,495 ASNs)
AS-WNA(82,495 ASNs)
AS2914:AS-GLOBAL(82,495 ASNs)
AS-GTTCUST6(83,984 ASNs)
AS-TINETCUST6(83,984 ASNs)
AS-GTTCUST(84,520 ASNs)
AS-TINETCUST(84,520 ASNs)
AS-GTT(84,608 ASNs)
AS-TINET(84,608 ASNs)
AS-TISCALI(84,608 ASNs)
AS-CESNET-NIX-PEERS(85,295 ASNs)
AS-TIXZH(94,757 ASNs)
AS-DECIX(96,509 ASNs)
AS-NFON-DECIX-PEERS-V4(96,509 ASNs)
AS-NFON-DECIX-PEERS-V6(96,509 ASNs)
AS6695:AS-DECIX-FRA(96,509 ASNs)
AS-ST1-IXPS(96,670 ASNs)
AS-DECIX-V6(100,277 ASNs)
AS6695:AS-DECIX-FRA-V6(100,277 ASNs)
AS-CLOUD-IX-PRO(100,911 ASNs)
AS-MERKEL-PEERS(100,925 ASNs)

Upstream AS Paths

15 unique paths, avg length 2.7

AS Looking Glass

Upstream paths (matching graph above)

AS140627 → AS1299 → AS3257 → AS25577 → AS51572
AS2497 → AS3257 → AS25577 → AS51572
AS16552 → AS3257 → AS25577 → AS51572
AS25091 → AS3257 → AS25577 → AS51572
AS33185 → AS3257 → AS25577 → AS51572
AS38880 → AS3257 → AS25577 → AS51572
AS52320 → AS3257 → AS25577 → AS51572
AS58511 → AS3257 → AS25577 → AS51572
AS3741 → AS25577 → AS51572
AS5413 → AS25577 → AS51572
AS6939 → AS25577 → AS51572
AS142271 → AS9304 → AS9505 → AS25577 → AS51572
AS14537 → AS25577 → AS51572
AS49544 → AS25577 → AS51572